Raman and NMR study of bioactive Na2O–MgO–CaO–P2O5–SiO2 glasses

The structural role of titanium in Ca–Sr–Zn–Si/Ti glasses for medical applications

“…This is in agreement with similar studies on alkali containing bioactive glasses where Si-O-Si asymmetric stretching mode was found in the region 1000-1200 cm −1 and Si-O-NBO stretching vibration were identified at 900-970 cm −1 . Similar to the trend found here the addition of modifiers to the Si network leads to local changes in the glass network and an overall increase in the ratio of Si-O-Si/Si-O-NBO content [41,42].…”

Bone-like forming ability of apatite–wollastonite glass ceramic

“…12). The presence of the amorphous silica layer, as reported in the scientific bibliography for this sort of reactions, [37][38][39] was not detected by the SEM/EDS studies of the cross sections (Figs. 8 and 9), which indicates that the layer was rather thin or discontinuous and only detectable by TEM, which operates at high resolution level.…”

Structural variations of bioactive glasses obtained by different synthesis routes

“…Further, the degree of solubility of bioactive glasses is critical in the formation of the hydroxycarbonate apatite (HCA) [4,56,67,68], while the ionic dissolution products could stimulate cell proliferation and activate the gene expression of osteoblasts [69]. In this context, the study of molecular structure of bioactive glasses is of importance to understand the structure-dissolution relationship and therefore to achieve a control over the properties of these materials.…”